Fix typo
Fix typo again
Add newline at the end of index file
Cache file will be created even if failed to parsing source file
Fix a bug of failed to load source file
Change default mode from debug to release
Force FileUtil into silence
Correct a module name to FileUtils from FileUtil
Display message when no need to clean up cache
Ignore backup directory when clean up cache
Correct a misspelled word
Optimize a method of collecting cache files
Update some messages
Add write permission check for fputs
Minor change in message
Change the handling of fractional seconds digits